EP4060205B1 - Tendeur à deux bras - Google Patents

Tendeur à deux bras Download PDF

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Publication number
EP4060205B1
EP4060205B1 EP20888639.0A EP20888639A EP4060205B1 EP 4060205 B1 EP4060205 B1 EP 4060205B1 EP 20888639 A EP20888639 A EP 20888639A EP 4060205 B1 EP4060205 B1 EP 4060205B1
Authority
EP
European Patent Office
Prior art keywords
arm
pulley
tension
tension arm
generator unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20888639.0A
Other languages
German (de)
English (en)
Other versions
EP4060205A1 (fr
EP4060205A4 (fr
Inventor
Hongliang FU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gates Corp
Original Assignee
Gates Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201911152723.2A external-priority patent/CN110848349A/zh
Priority claimed from CN201922030682.1U external-priority patent/CN211501516U/zh
Application filed by Gates Corp filed Critical Gates Corp
Publication of EP4060205A1 publication Critical patent/EP4060205A1/fr
Publication of EP4060205A4 publication Critical patent/EP4060205A4/fr
Application granted granted Critical
Publication of EP4060205B1 publication Critical patent/EP4060205B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F16H7/10—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley of an idle pulley
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F16H7/10—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley of an idle pulley
    • F16H7/1209—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley of an idle pulley with vibration damping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F16H2007/0802—Actuators for final output members
    • F16H2007/081—Torsion springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0865—Pulleys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0874—Two or more finally actuated members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F16H2007/0889—Path of movement of the finally actuated member
    • F16H2007/0893—Circular path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes or chains 
    • F16H2007/0889—Path of movement of the finally actuated member
    • F16H2007/0897—External to internal direction

Definitions

  • the present invention relates to a two-arm tensioner, which is particularly suitable for an internal combustion engine transmission system with a motor generator unit.
  • An engine with a starter-generator unit has been developed to improve the fuel consumption and emissions.
  • the starter-generator unit in this type of engine acts as a starter motor to restart the engine.
  • the starter-generator unit can be used as a generator to recharge the battery.
  • the starter-generator unit is mechanically connected to a crankshaft of the engine through a circular transmission apparatus, such as a belt or chain.
  • the circular transmission apparatus vibrates under the influence of the system, especially when the starter-generator unit switches functions between the starter and the generator. In such an event, the roles of the tensioned and relaxed sides of the circular transmission apparatus are exchanged with each other. For this reason, the industry has developed a tensioner to handle the vibration of the circular transmission apparatus with the starter-generator unit.
  • WO 2016/126428 discloses a dual arm tensioner comprising a first pivot arm having a first pulley journalled thereto and engageable with a mounting surface through a first pivot axis, a second pivot arm having a second pulley journalled thereto, the second pivot arm pivotally engaged to the first pivot arm through a second pivot axis, the second pivot axis disposed from the first pivot axis, a biasing member engaged between the first and second pivot arms urging the first pulley toward the second pulley, and the second pivot axis is between the first pulley and the first pivot axis.
  • the present invention solves the technical issues by providing a new type of two-arm tensioner.
  • the present invention provides: a two-arm tensioner as recited in claim 1.
  • Optional features are recited in the dependent claims.
  • the beneficial effects of the present invention are as follows:
  • the new type of two-arm tensioner has a simple structure and is easy to assemble.
  • the first pivoting center 15 is provided outside the wrapping range of the circular transmission part 20.
  • the first tension arm 13 is one piece.
  • the first tension arm 13 includes a first portion and a second portion that are mutually hinged. Before the two-arm tensioner is assembled to the internal combustion engine, the first portion may be rotated relative to the second portion; and after the two-arm tensioner is assembled to the internal combustion engine, the first portion is fixed relative to the second portion. The first portion and the second portion are hinged at the first pivoting center, or a hinge point deviates from the first pivoting center.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Claims (14)

  1. Tendeur à deux bras, utilisé sur un moteur à combustion interne monté avec une unité de moteur-générateur, le moteur à combustion interne comprenant une poulie de vilebrequin (30) et une poulie d'unité de moteur-générateur (50), et une pièce de transmission circulaire (20) entourant la poulie de vilebrequin (30) et la poulie d'unité de moteur-générateur (50) ;
    le tendeur à deux bras comprenant un premier bras de tension (13) et un second bras de tension (14), le premier bras de tension (13) ayant une première extrémité et une seconde extrémité, et le second bras de tension (14) ayant une première extrémité et une seconde extrémité, le premier bras de tension (13) étant pourvu d'un premier centre de pivotement (15) et pouvant pivoter autour du premier centre de pivotement (15), la première extrémité du premier bras de tension (13) étant pourvue d'une première poulie de tension (11), et la première extrémité du second bras de tension (14) étant articulée sur le premier bras de tension (13) autour d'un second centre de pivotement (16) au niveau de la seconde extrémité du premier bras de tension (13), les premier et second centres de pivotement (15, 16) étant décalés l'un par rapport à l'autre, et la seconde extrémité du second bras de tension (14) étant pourvue d'une seconde poulie de tension (12), le premier centre de pivotement (15) étant situé entre la première extrémité et la seconde extrémité du premier bras de tension (13), le long du premier bras de tension (13) ;
    un ressort de torsion (19) étant placé entre les premier et second bras de tension (13, 14) et les déviant tous deux autour du second centre de pivotement (16) du second bras de tension (14) dans la direction proche l'un de l'autre ; et caractérisé en ce que :
    le premier centre de pivotement (15) est situé en dehors de la plage d'enroulement de la pièce de transmission circulaire (20), le premier bras de tension (13) étant grossièrement en forme d'arc, et s'enroulant partiellement autour de la poulie d'unité de moteur-générateur (50) dans le moteur à combustion interne.
  2. Tendeur à deux bras selon la revendication 1, les première et seconde poulies de tension (11, 12) étant pressées séparément sur l'arrière de la pièce de transmission circulaire (20).
  3. Tendeur à deux bras selon la revendication 1, la première poulie de tension (11) et la seconde poulie de tension (12) étant respectivement installées de part et d'autre de la poulie d'unité de moteur-générateur (50).
  4. Tendeur à deux bras selon la revendication 3, la première poulie de tension (11) étant pressée contre une première partie (21) de la pièce de transmission circulaire (20) située sur le côté gauche de l'unité de moteur-générateur (50) et s'étendant entre une poulie de vilebrequin (30) et la poulie d'unité de moteur-générateur (50) ; et la seconde poulie de tension (12) étant pressée contre une seconde partie (22) de la pièce de transmission circulaire (20) qui s'étend entre la poulie d'unité de moteur-générateur (50) et la poulie de vilebrequin (30).
  5. Tendeur à deux bras selon la revendication 1, le premier bras de tension (13) comprenant une première partie et une seconde partie qui sont mutuellement articulées ; avant que le tendeur à deux bras ne soit assemblé au moteur à combustion interne, la première partie pouvant être tournée par rapport à la seconde partie ; et après que le tendeur à deux bras est assemblé au moteur à combustion interne, la première partie étant fixée par rapport à la seconde partie.
  6. Tendeur à deux bras selon la revendication 5, la première partie et la seconde partie étant articulées au niveau du premier centre de pivotement (15), ou un point d'articulation s'écartant du premier centre de pivotement (15).
  7. Tendeur à deux bras selon la revendication 1, le premier centre de pivotement (15) comprenant un trou situé dans le premier bras de tension (13), et un élément de verrouillage (17) étant fourni pour fixer de manière pivotante le premier bras de tension (13) dans le moteur à combustion interne.
  8. Tendeur à deux bras selon la revendication 7, un ressort à disque étant situé au niveau du premier centre de pivotement (15), et le ressort à disque étant disposé axialement entre l'élément de verrouillage (17) et le premier bras de tension (13).
  9. Tendeur à deux bras selon la revendication 1, le tendeur à deux bras comprenant en outre un support, le premier bras de tension (13) étant monté pivotant sur le support par l'intermédiaire du premier centre de pivotement (15), et le support étant fixé au moteur à combustion interne.
  10. Tendeur à deux bras selon la revendication 1, une extrémité du ressort de torsion (19) venant directement en butée contre l'un des premier et second bras de tension (13, 14), et l'autre extrémité de celui-ci venant directement ou indirectement en butée contre l'autre des premier et second bras de tension (13, 14).
  11. Tendeur à deux bras selon la revendication 10, une pièce d'amortissement (191) étant également située entre le ressort de torsion (19) et l'un des premier et second bras de tension (13, 14) ; la pièce d'amortissement (191) pouvant venir en butée contre la partie d'extrémité du ressort de torsion (19) pour être reliée en série, ou la pièce d'amortissement (191) pouvant être reliée en parallèle avec le ressort de torsion (19).
  12. Tendeur à deux bras selon la revendication 1, la première poulie de tension (11) étant pressée contre une première partie (21) de la pièce de transmission circulaire (20) qui s'étend entre une poulie de vilebrequin (30) et la poulie d'unité de moteur-générateur (50) ; et la seconde poulie de tension (12) étant pressée contre une seconde partie (22) de la pièce de transmission circulaire (20) qui s'étend entre la poulie d'unité de moteur-générateur (50) et la poulie de vilebrequin (30).
  13. Tendeur à deux bras selon la revendication 1 ou 12, le premier bras de tension (13) étant monobloc.
  14. Tendeur à deux bras selon la revendication 1 ou 12, la première poulie de tension (11) étant installée sur un côté près du moteur à combustion interne par rapport au premier bras de tension (13) ; le second bras de tension (14) étant installé sur un côté près du moteur à combustion interne par rapport au premier bras de tension (13) ; la seconde poulie de tension (12) étant installée sur un côté à l'opposé du moteur à combustion interne par rapport au second bras de tension (14) ; les première et seconde poulies de tension (11, 12) étant sur la même surface radiale.
EP20888639.0A 2019-11-14 2020-11-13 Tendeur à deux bras Active EP4060205B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201911152723.2A CN110848349A (zh) 2019-11-14 2019-11-14 双臂张紧器
CN201922030682.1U CN211501516U (zh) 2019-11-14 2019-11-14 双臂张紧器
PCT/CN2020/128552 WO2021093836A1 (fr) 2019-11-14 2020-11-13 Tendeur à deux bras

Publications (3)

Publication Number Publication Date
EP4060205A1 EP4060205A1 (fr) 2022-09-21
EP4060205A4 EP4060205A4 (fr) 2023-08-23
EP4060205B1 true EP4060205B1 (fr) 2025-07-09

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ID=75911443

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Application Number Title Priority Date Filing Date
EP20888639.0A Active EP4060205B1 (fr) 2019-11-14 2020-11-13 Tendeur à deux bras

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EP (1) EP4060205B1 (fr)
WO (1) WO2021093836A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20260092641A1 (en) * 2022-09-20 2026-04-02 Gates Corporation Dual arm tensioner with dynamic pivot

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4315362B2 (ja) * 2002-08-08 2009-08-19 バンドー化学株式会社 ベルト伝動装置
US7494434B2 (en) * 2005-06-15 2009-02-24 Gm Global Technology Operations, Inc. Belt alternator starter accessory drive with dual tensioner
DE102009003366A1 (de) 2009-01-22 2010-07-29 Contitech Antriebssysteme Gmbh Riementrieb mit Spannsystem
US9341243B2 (en) 2012-03-29 2016-05-17 Litens Automotive Partnership Tensioner and endless drive arrangement
CN107076277A (zh) * 2014-10-20 2017-08-18 利滕斯汽车合伙公司 具有张紧系统和隔离装置的环形传动设备
US9651122B2 (en) * 2015-02-05 2017-05-16 Gates Corporation Dual arm tensioner
HUE057086T2 (hu) * 2015-02-06 2022-04-28 Litens Automotive Inc Végtelenített hajtás hibrid gépjármûhöz, kétkarú feszítõelemmel, valamint nem körpálya menti karokkal
JP6304188B2 (ja) * 2015-09-30 2018-04-04 マツダ株式会社 ベルトテンショナ
US9976634B2 (en) * 2016-07-06 2018-05-22 Gates Corporation Rotary tensioner
DE102016218709A1 (de) 2016-09-28 2018-03-29 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Anordnung eines Spanners an einem Riementrieb, Riementrieb und Antriebsaggregat
CN106931111B (zh) 2017-05-04 2023-06-23 青岛泰德汽车轴承股份有限公司 一种双摆臂式自动张紧器
CN110230675A (zh) * 2019-05-20 2019-09-13 宁波丰茂远东橡胶有限公司 一种双向关联式张紧器装置
CN211501516U (zh) * 2019-11-14 2020-09-15 盖茨优霓塔传动系统（上海）有限公司 双臂张紧器
CN110848349A (zh) * 2019-11-14 2020-02-28 盖茨优霓塔传动系统（上海）有限公司 双臂张紧器

Also Published As

Publication number Publication date
EP4060205A1 (fr) 2022-09-21
WO2021093836A1 (fr) 2021-05-20
EP4060205A4 (fr) 2023-08-23

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